Suspended Carbon Nanotube Quantum Wires with Two Gates

Details Suspended Carbon Nanotube Quantum Wires with Two Gates Suspended Carbon Nanotube Quantum Wires with Two Gates

2003-12-10

arxiv.org/abs/cond-mat/0312239v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Small, www.small-journal.com, in press

Scientific paper

Suspended single-walled carbon nanotube devices comprised of high quality electrical contacts and two electrostatic gates per device are obtained. Compared to nanotubes pinned on substrates, the suspended devices exhibit little hysteresis related to environmental factors and manifest as cleaner Fabry-Perot interferometers or single electron transistors. The high-field saturation currents in suspended nanotubes related to optical phonon or zone boundary phonon scattering are significantly lower due to the lack of efficient heat sinking. The multiple gate design may also facilitate future investigation of electromechanical properties of nanotube quantum systems.

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